712221643 has 8 divisors (see below), whose sum is σ = 842035680. Its totient is φ = 589424640.

The previous prime is 712221641. The next prime is 712221709. The reversal of 712221643 is 346122217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 712221643 - 2¹ = 712221641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712221641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1754038 + ... + 1754443.

It is an arithmetic number, because the mean of its divisors is an integer number (105254460).

Almost surely, 2^712221643 is an apocalyptic number.

712221643 is a deficient number, since it is larger than the sum of its proper divisors (129814037).

712221643 is a wasteful number, since it uses less digits than its factorization.

712221643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508517.

The product of its digits is 4032, while the sum is 28.

The square root of 712221643 is about 26687.4810163867. The cubic root of 712221643 is about 893.0416667602.

The spelling of 712221643 in words is "seven hundred twelve million, two hundred twenty-one thousand, six hundred forty-three".